Ariba Promotes Executive to Strengthen Solutions-Based Approach to Enterprise Spend Management; Kevin Costello Spearheads Combined Sales and Services Organization.

Business Editors/High-Tech Writers

SUNNYVALE, Calif.--(BUSINESS WIRE)--Nov. 6, 2003

Ariba, Inc. (Nasdaq:ARBA), the leading Enterprise Spend Management (ESM) solutions provider, today announced it has promoted Kevin Costello, EVP Solutions Delivery, to the newly created position of EVP, Sales and Solutions. In his new role, Costello will be responsible for directing Ariba's integrated global sales and services organizations.

"We've become leaders in this market by closely listening to, and working with our customers," said Bob Calderoni, president and CEO, Ariba. "Our customers need both proven technology and deep knowledge from Ariba as they pursue their ESM strategies. Kevin's new role is in direct response to customer feedback, and based on the accomplishments of the Ariba Solutions Delivery team to date, I have every confidence that we have the right strategy for customers serious about managing spend in this market."

"Since coming to Ariba I've had a front row seat watching leading global companies embrace the idea that ESM is different, and that it requires a different approach than traditional enterprise software deployment," said Costello. "I'm looking forward to working closely with our customers on both a software and services front as Ariba continues to bring innovation to the ESM market."

Since joining Ariba last year, Costello has expanded and diversified the Ariba Solutions Delivery organization to include more strategic sourcing, planning, and spend analysis capabilities. He joined Ariba from Andersen Business Consulting, where he was the global managing partner of Andersen's Market Solution Team with responsibility for the supply chain, customer channel and marketplace technology practice areas. Costello holds a Bachelor of Science degree from the University of Illinois.

About Ariba, Inc.

Ariba, Inc. is the leading Enterprise Spend Management (ESM) solutions

provider. Ariba helps companies develop and leverage spend management as a core competency to drive significant bottom line results. Ariba Spend Management software and services allow companies to align their organizations with a spend-centric focus and deploy closed-loop processes for increased efficiencies and sustainable savings. Ariba can be contacted in the U.S. at 650-390-1000 or at www.ariba.com.

Ariba and the Ariba logo are registered trademarks of Ariba, Inc. Ariba Spend Management, Ariba Analysis, Ariba Buyer, Ariba Category Management, Ariba Contracts, Ariba Travel & Expense, Ariba Workforce, Ariba Invoice, Ariba eForms, Ariba Enterprise Sourcing, Ariba Supplier Network, BPM Services, Power Sourcing, Total Spend Capture and PO-Flip are trademarks or service marks of Ariba, Inc.

Ariba Safe Harbor 

Safe Harbor Statement under the Private Securities Litigation Reform Act 1995: Information and announcements in this release involve Ariba's expectations, beliefs, hopes, plans, intentions or strategies regarding the future and are forward-looking statements that involve risks and uncertainties. All forward-looking statements included in this release are based upon information available to Ariba as of the date of the release, and we assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance and actual results could differ materially from our current expectations. Factors that could cause or contribute to Ariba's operating and financial results to differ materially from its current expectations include, but are not limited to: delays in development or shipment of new versions of Ariba's products and services; lack of market acceptance of Ariba's existing or future products or services; inability to continue to develop competitive new products and services on a timely basis; introduction of new products or services by major competitors; the ability to attract and retain qualified employees; difficulties in assimilating acquired companies; the impact of recent workforce reductions on Ariba's operations; lengthening sales cycles and the deferrals of anticipated orders; declining economic conditions, including a recession; inability to control costs; changes in the company's pricing or compensation policies; inability to successfully manage a reduction in the company's workforce; significant fluctuations in our stock price; the outcome of legal proceedings relating to the restatement of our financial statements; the possibility that stockholders or regulatory authorities may initiate additional proceedings against Ariba and/or our officers and directors as a result of the restatements; and the level of professional fees and expenses incurred by Ariba in connection with its previously disclosed accounting review and associated regulatory and litigation proceedings. Factors and risks associated with its business, including a number of the factors and risks described above, are discussed in Ariba's Form 10-K filed April 10, 2003 and in its Form 10-Q filed August 11, 2003.